Automobile lock



1. INGRAHAM AND E. E. NORGAARD.

AUTOMOBILE LOCK.

APPLICATION FILED 020.31, 191s.

Patented Apr. 4, 1922,

o aard John fmer' provenient are Liiacoa. v

, .f JOHN'` INGRAHAM AND ELI/[ER E..NORGAARD, OF COUNCIL BLUFFS, IOWA.

AUTOMOBILE Loox.

To ZZ w/i'om t may concern." Be it known that we, J oHN INGRAHAM and Emmi: Nonoaano, citizens of the United States, residing' in Council Bluffs, in the county of Pottawattamie and State of lowa, have invented a new and useful Automobile `Lock, of which the following is a. specification. l Ourinventon relates to improvements in automobile locks in which a cut-off is locked in the manifold; andV the objects ,of ourini- F'rst, to Vprovide `a locked cut-'offjin the manifold `of an automobilethat 'will suc# cessfully stop the running ofthe engine to which the manifold is applied; second, to'

provide such a lock without a supporting stem to cause leakage from the outside; third,

to provi-de such a cut-off that will not stick orcorrode'w'hen in either position; fourth, to plfOVlde a cut-off in connection with a commerciallock, so that a complete rotation cut-oif and lock.

Vfold showingair duct and stopper.

of the key `will 'furnish the necessary limited rotation ofthe cut-'off ,'iifth, t-o provide such a lock, giving' the 4key and turning elements offtlhe lo'ck'a leverage over the cut-off; sixth, to'provide such van automobile looked cutoil'l in the manifold Vthat when locked closed will open 'a cold air duct into themanifold; seventh, to provide a'lock having` the characteristics herein stated whch cannot be opened` or removed without removing, the manifold or destroying' 1t.

lVe attain these .the mechanism' illustrated in the acompanying drawing in which Fig. l, is aside elevation of a section of a manifold showing an elevation of the loc-k; Fig. 2, is a side elevation of a section of a manifold showing` the lock in position,` Fig. 3, is a cross secto-n of'a manifold, VFig'. 4, is a cross section of the manifold and cut-ofi'. Fig. 5, is an elevation of the gearsegment and pinion. Fig. 6, is an end view of the cut-off; and Fig. 7. is a cross section of cut-off and mani-v Similar letters refer to similar parts throughout the severalviews.

A manifold having the usual connection 5 with the engine block 6 is provided with a suitable cylindrical transverse chamber, c. The chamber c, is cut away except at'two opposite spaces. (Zand Z), the cut portions of said cylindrical chamber, c. corresponding' to the hollow portions of the manifold Specification of Letters Patent.

Into the cylindrical chamber c is vin#V Patented Apr. 4,1922.

Application ledDecember 31, 1913. i' Serial No. 269,167.

serted a cut-off having cylindrical ends and va middle web fw. rlfhe web to is adapted to extend betweenfthe walls a, of the cylindricalchamber c, when the cut-o f, is turned in the proper position. VI`hefcut-k ofi Y f has formed upon ita gear segment 'gf This gear segment g, is adapted to receive a pinion p." Next to the front end of the cylindrical chamber @inthe manifold m, is provided a lock chamberd. ChamberrcZ or its `evtensionfis Vadapted to receive a commerci-al lock Z, [of a cylinder. andiA tumbler vtype,afnd'to be fastened fromwvithinfthe cylindrical chamber c by any suitable means as'vby the screws as shown at .s in Figure 3, whichl can only,V be unscrewed from within the cylinder c. The turning,"member-j,4 of

this lock Z enters and engages pinion p. `The gear segment g formed on the cut-off'f ris constructed to limit the travel of the pinion 10', so thatthe travel of the cut-off f'willbe proper Ito Lopen and close the cuto'if f, in the chamber c, and thepinion p is so lrelationed i tothe gear segment g, that' a fraction o r multiple of a complete turn ofthe Vbarrel of the lock Z.l operatesto open or close the ,cutoff f. e The-.commercial lock Z, may be arranged so that the' key can lbe inserted or withdrawn'jat fractional or fulll turnsof the barrels of' the lock; usually at full turns. Byfso arranging the pinion p, and the gear segment g, thekey of the'lock Z, may be in serted'V or withdravvn'when 'cut-olf 7, is either in an 'opener closed position.` The pinion p is arranged to fit closely into an 'opening Vthrough the Wall' of the-chamber c, and a suitable cover e, is provided for the chamber m is in position close to the engine to which ,0, Vonl Vthe backl of the manifold fm, so that the same cannot be removed when the manifold'95 1' it is applied. The chamber cY is thus closed'V to the ingress of outside air, and removal or operation of theparts are made. impossible except by a removalofthe manifold fromV the engine.

lnvorder to insure a failure of operation of the engine'when the cut-olf f is 'closedin y *Y the chamber c, we employ an air duct or part 0 here shown in the cover e to communicate any leakage around Athe cut-oil' will be neutralized in the engine by the admission of air through the duct o. A suitable cover Zi, is arranged in a suitable place in the cut- ;'with the voutside air, so that when the eut-off.

f, is closed withathe web w, extending'be A tween the sides a, and b, of the chamber c. Y

off f, to close the duct o, in the cylinder o, when the cut-off f, is in an o-pen position.

l/Ve are able by screwing in such a cylinder c, asa separate part and'iilling metal o: other material back of the portions, a, b, of the cylindrical chamber c, to utilize commercial manifolds securing the cover e, thereon so that the cylinder cannot be removed with the cover e in place or without removing the manifold m. y

The operation of the manifold lock is accomplished by inserting the key in the lock Z, and turning it a suitable number of turns or portion thereof, so that the pinion p, turns in the Segment g, until the web fw is turned to its desired position. If the manifold lock with its cut-off f, bev closed, the lock 'can only be turned to open the valve and the pinion p', will move to the extremity of its travel in the gear segment g. The web w, will take the position away from the closed. portions a and Z), of the cylinder c, allowing the mixture of gases through the manifold m, to pass to the engine. If the cut-off f, be opened, the key may be inserted in the lock and turned until pinion p, reaches the other extremity of its travel, closing the cut-olf '71. When the cut-off f, is closed, the cover h leaves the duct 0 open, admitting air through the duct 0. When the cut-off is open the cover it, is so placed with reference to the duct o, as'to cover it as shown in Fig. T. The key in the lock may be ywithdrawn at either extremity of the movement of pinion p, with respect to the gear segment g, thus leaving the cut-off locked in an open or shut position. By reason of the movement of the cut-off f, being a fraction of a turn of the movement of the barrel of lock Z, the key in the lock has a leverage over the movement of the cut-olf f, preventingthe cut-off f, from sticking or holding against the opening of closing of the lock as is the case where the turning member cut-off f.

l/Vhat we claim and desire to secure by Letters Patent is: l

l. In a manifoldV lock a transverse cylinder in the manifold with a passage formed therein; a cylindrical cut-olf having a central cross web; a limited gear segment on the cut-off; aV pinion engaging said gear j, of the lock connects directly with segment, and a commercial lock ,engaging said pinion.

"2. In a manifold lock a transverse cylinder in a manifold with a passage therein; a

cylindrical cut-ofil havinga central cross-,l web; ya limited gear segment on the cut-off ;y

a pinion engaging said gear segment; a commercial lock engaging said pinion and an air duct leading into said cylinder arranged to be opened when said cut-off is closed and closed when said cut-off is opened.

3; In a manifold lock a cylinder interposed transversely of said manifold, a passage through said cylinder, `a chamber adjacent` to said transverse cylinder adapted to re-V ceive a commercial lock, a means for securing said lock from the inside of said cylinder, a cut-off adapted to revolve in said cylinder and close the passage therein, a gear segment on said cuteoff, a pinion operatively positioned intermediate said lock and said gear segment, an air duct leading into said cylinder and means for closing said air duct when said cut-olf is open and a remov-V 'able cover on said transverse cylinder 'so Y 

